WHAT IS LIFE LL WITH 1 TERM ACCESS
5th Edition
ISBN: 9781319438920
Author: PHELAN
Publisher: MAC HIGHER
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Chapter 10, Problem 12SA
Summary Introduction
To review:
A comparison of homologous and analogous structures with an example each.
Introduction:
Many organisms have similar structural adaptations that help them survive in their environments.
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Discriminate between homologous and analogous structures.
Distinguish between homologous and analogousstructure.
What are homologous structures? Give an example. Is it necessary that homologous structures always have a common ancestor. Justify your answer.
Chapter 10 Solutions
WHAT IS LIFE LL WITH 1 TERM ACCESS
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- Use examples to explain the difference between analogousstructures and homologous structures.arrow_forwardDifferentiate between analogous and homologous structures.arrow_forwardWhat are homologous structures? Give an example. Is it necessary that homologous structures always have a common ancestorsarrow_forward
- Use the shapes below to answer Question number 2. Please be accurate and complete it CORRECTLY. Don’t use previous answers.arrow_forwardGive typing answer with explanation and conclusionarrow_forwardDr. Olivera describes how cone snail shell similarities are a proxy for relatedness but describes how this works on a molecular level with the construction of a phylogenetic tree from the ribosomal DNA sequence comparisons. Group of answer choices True Falsearrow_forward
- Name a type of homology that is useful in buildingphylogenetic trees and explain why this kind of homology, andnot others, is usefularrow_forwardDraw a simple phylogenetic tree for two sisters clades with a common ancestor. Each sister clade consists of two taxa. Define the following terms and use to label your diagram: clade, node, branch, common ancestor, and taxon.arrow_forwardDefine homology and describe the different ways in which homologous characteristics provide evidence for the structure of the tree of life.arrow_forward
- Analogous structures perform similar functions but do not arise from common ancestry. What explains the existence of analogous structures?arrow_forwardDifferentiate analogous structures from homologous types. Identify which is which among the shark, pigeon and cat when you transition from each of the classes. For this, create a 4-column table with the following headings: (1) Structure, (2) Specimen a vs b, (3) Specimen b vs c, and (4) Specimen c vs a. For each cell, write either AS for analogous structures, or HS for homologous types. Note (not all structures encountered need to be here).arrow_forwardDefine homology and homoplasy and explain their connection to the concept of parsimony in phylogenetic analysis. Provide an example of each and discuss the challenges they may present when inferring evolutionary relationships.arrow_forward
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